WO1999022467A1

WO1999022467A1 - Method, mobile station and base station for transmitting information via a radio interface of a mobile communications system

Info

Publication number: WO1999022467A1
Application number: PCT/DE1998/002526
Authority: WO
Inventors: Gerhard Ritter
Original assignee: Siemens Aktiengesellschaft
Priority date: 1997-10-27
Filing date: 1998-08-27
Publication date: 1999-05-06
Also published as: EP1027776B1; DE59801997D1; AU1020599A; EP1027776A1

Abstract

A mobile communications system has provisions for a time multiplexing method (e.g., TDMA) for several connections between mobile stations (MS1, MS2, MSK) and base stations (BS1, BS2) and on each occasion, information (ni, si) for an existing connection between a mobile station (MS1) and a base station (BS1) is transmitted in time slots (ts1......ts8) of recurring time frames (FR1, FR2). According to the invention, the number of time slots (e.g. ts1) is compressed in at least two time frames (FR1, FR2) which are used for the information of the existing connection between the mobile station (MS1) and the base station (BS1), and the transmission rate for the information contained in the remaining time slots is increased. The time slots freed by the compression are used for transmitting information (ni, si) of another connection which is independent of the existing connection.

Description

description

Method, mobile station and base station for information transmission via a radio interface of a Mobi1 communication system

The invention relates to a method for transmitting information via a radio interface of a mobile communication system, and to a mobile station and a base station for carrying out the method.

The structure of digital radio communication systems is described in J.Oudelaar, "Evolution towards UMTS", PIMRC 94, 5th IEEE International Symp. On Personal, Indoor and Mobile Radio Communications, The Hague, NL, September 18-22 1994, pp.852-856, and M.Lenti, H.Hageman, "Paging in UMTS", RACE Mobile Telecommunications Workshop, Vol. 1, Amsterdam, NL, 17th-19th May 1994, pp.405-410.

The currently existing mobile radio system GSM (Global System for Mobile Communications) is a radio communication system with a TDMA component for subscriber separation (time division multiple access). According to a frame structure, information about the subscriber connections between mobile stations and base stations is transmitted in time slots. The transmission takes place in blocks.

From the published patent application DE 42 10 305 AI, a method for data transmission with variable traffic volume is known, in which a certain time segment of a data stream is divided into parts, the number of which depends on the traffic volume. The various parts are coded with more or less many mutually orthogonal codes, so that a mixed TDMA / CDMA system (CDMA, code division multiple access) is created. The invention has for its object to provide a method and devices that enable the establishment of simultaneous connections in a mobile communication system while maintaining the average information transfer rate. This object is achieved by the method with the features of claim 1, the mobile station with the features of claim 15 and the base station with the features of claim 16. Further developments of the invention can be found in the subclaims.

A mobile communication system provides a time-division multiplex method for several connections between mobile stations and base stations, information for an existing connection between a mobile station and a base station being transmitted in time slots of recurring time frames. According to the invention, the number of time slots is compressed in at least two time frames that are used for the information of the existing connection between the mobile station and the base station, and the transmission rate for the information contained in the remaining time slots is increased. The free time slots created by the compression are used to transmit information of at least one further connection that is independent of the existing connection.

By compressing the time slots for the information transmission of the already existing connection, the mobile station can simultaneously set up one or more additional independent connections in the time slots that have become free. This enables the mobile station to use several simultaneous connections to one or different base stations, regardless of the traffic volume. By increasing the information transmission rate in the remaining time slots for the first connection, the average information transmission rate of the entire information stream can be maintained, for example in a multi-frame with several time frames. The additional advantageous effect is _b Better utilization of the radio resources through at least one additional parallel connection without having to increase the bandwidth.

Advantageous applications of the invention for the mobile station consist in the separate, independent connections for multimedia or multiple services, e.g. Use data and voice services simultaneously. The invention has a particularly advantageous effect for an uninterrupted forwarding of an existing connection (handover), since the second connection to a target base station is established in advance and the sufficient quality of this connection can be checked and the required synchronization can be carried out before subsequently - depending on the determined quality of the new connection - the uninterrupted transfer takes place and the previous connection is triggered.

An advantageous application of the invention for the mobile station also consists in using the compression of the time slots for neighboring cell measurement for the recognition of neighboring base stations. The search mechanism has proven to be particularly favorable when the mobile communication system is operated in a TDD mode (time division duplex), in which the base stations and the mobile stations alternately transmit on one and the same high-frequency channel. Since the neighboring base stations do not transmit continuously, the neighboring cell measurement in the TDD mode can only be carried out by compressing the time slots in an extended time window of at least two time frames.

According to a development of the invention, it is advantageous to suspend the transmission of the information of the existing connection at regular intervals in the respective time slot of successive time frames of a multi-frame and is replaced by the transmission of information for the further connection.

It has proven to be cheap, since it is particularly simple to control, to suspend the transmission of the information of the existing connection in the time slot at least every second time frame of a multi-frame and to replace it with the information transmission for the further connection.

According to another development of the invention, the

Transmission of the information of the existing connection is also suspended at irregular intervals in the respective time slot of successive time frames of a multi-frame and is replaced by the information transmission for the further connection.

A number of codes for connections of the mobile station to the base station is preferably assigned in the time slot and increased when the time slots are compressed in order to increase the information transmission rate. This is a particularly advantageous procedure, which means that there is no additional control expenditure, particularly when the mobile communication system is designed as a TDMA / CDMA radio communication system. A communication system of this type has frequency channels formed by time slots, in which information from a plurality of connections is simultaneously transmitted between the mobile station and the base station, the information from different connections being distinguishable in accordance with a connection-specific fine structure.

A mobile station for carrying out the method according to the invention has a signal processing device for establishing a further connection which is independent of the existing connection and a control device for selecting the free time slots resulting from the compression for the transmission of the information of the independent connection (s). A base station for carrying out the method according to the invention comprises a control device for compressing the number of time slots in at least two recurring time frames which are used for the information of the existing connection between the mobile station and the base station and for increasing the transmission rate for those in the remaining ones Time slots contained information. Furthermore, a transmission device for sending signaling information to the mobile station is provided, by means of which the mobile station recognizes the free time slots resulting from the compression.

In the following, the invention is explained in more detail with reference to an exemplary embodiment with reference to drawings.

Show

1 shows a block diagram of a mobile communication system,

2 shows a schematic illustration of the frame structure for information transmission,

3 shows block diagrams of a base station and a mobile station.

The structure of the mobile communication system shown in FIG. 1 corresponds to a known GSM system which has a multiplicity of mobile switching centers MSC which are networked with one another or which provide access to a fixed network PSTN. These mobile switching centers MSC are each connected to at least one base station controller BSC. Each base station controller BSC in turn enables a connection to at least one base station, in the present example to two base stations BS1 and BS2. Such a basic _S tation BSl, BS2 is a radio station that is arranged for covering a radio zone to build up in the radio area of a radio interface comprises a communications link from / to mobile stations MS, dismantle and maintain keep kön- NEN.

1 shows, by way of example, a number of connections for the transmission of useful information ni and signaling information si between mobile stations MSI, MS2 and the base station BS1 and between a mobile station MSK and the base station BS2. An operation and maintenance center OMC implements control and maintenance functions for the mobile communication system or for parts thereof. The functionality of this structure can be transferred to other radio communication systems in which the invention can be used.

The mobile communication system provides a time-division multiplex method for the connections between the mobile stations MSI, MS2 and MSK and the base stations BS1 and BS2. For example, there is a time slot tsl in recurring time frames FR1, FR2 ... for the transmission of information ni, si for an existing connection between the mobile station MSI and the base station BSl and for example a time slot ts2 in recurring time frames FR1, FR2 ... for the transmission of information ni, si reserved for an existing connection between the mobile station MS2 and the base station BS1. According to the invention, the number of time slots tsl or ts2 in the time frame FR1 ..., which are used for the information of the existing connection between the mobile station MSI or MS2 and the base station BSl, is compressed in such a way that the free time slots resulting from the compression tsl or ts2 can be used to transmit information from another connection that is independent of the existing connection. In order to be able to maintain the information transmission rate on average, the transmission rate for the information contained in the remaining time slots tsl or ts2 increased.

For the present example, this means that of the time slots tsl allocated for the existing connection of the first and second time frames FR1, FR2, the time slot tsl of the first time frame FR1 is still used for information transmission on the existing connection, the time slot tsl des second time frame FR2, however, is used to transmit information ni, si of a second connection from the mobile station MSI. The second connection can then either to the previous base station BS1 - e.g. for the simultaneous use of multiple services such as data and voice transmission - or to another base station BS2 - e.g. as the target base station when the existing connection is switched on (“handover”). In the case of the handover, this is carried out without interruption, since the quality can first be tested for the second connection established regardless of the existing connection, before a handover is carried out By increasing the information rate in the remaining time slot tsl of the time frame FRl, no information is lost for the mobile station MSI on the existing first connection to the base station BSl .. An increase in the transmission rate is advantageously achieved by assigning codes in the time slots tsl ... the time frame has been reached which enables the transmission of information from parallel connections in accordance with the number of codes per time slot.

The structure and content of the time frames for information transmission can be seen in FIG. 2. According to a TDMA component, a division of a broadband frequency range B = 1.6 MHz into several time slots ts, for example eight time slots tsl ... ts8, is provided for each time frame FR1, FR2 ... (TDMA frame). Each time slot ts within the frequency range B forms a frequency channel. Within the time slots tsl ... ts8 forming frequency channels, useful or transmit signaling information of several connections in radio blocks. These radio blocks for user data transmission consist of sections with data d, in which sections with training sequences tseql ... tseqK known on the receiving side are embedded. The data d are spread individually for each connection with a fine structure, a subscriber code c, so that, for example, K connections can be separated at the receiving end by this CDMA component.

The spreading of individual symbols of the data d causes T _sym Q chips of the duration T _chip to be transmitted within the symbol duration. The Q chips form the connection-specific subscriber code c. Furthermore, the time slots tsl ... ts8 each have a protection time gp for compensating for different signal propagation times of the connections.

Within a broadband frequency range B, the successive time slots ts are structured according to a frame structure. For example, eight time slots tsl ... ts8 are combined to form a frame FRl, FR2 and the recurring frames FRl, FR2 ... are combined to form a multi-frame. In the selected example according to FIG. 1, the time slot tsl in the frames FRl, FR2 ... each forms a frequency channel for transmitting the information from / to the mobile station MSI and the time slot ts2 in the frames FRl, FR2 ... each forms a frequency channel for transmission the information from / to the mobile station MS2. A distinction is made between the subscriber signals of the mobile station MSI by the codes cl, c2 ... in the time slot tsl and the subscriber signals of the mobile station MS2 by the codes cl ... in the time slot ts2 according to the CDMA component.

In a departure from the known procedure, the number of time slots tsl is compressed into the successive time frames FR1, FR2 ... which are used for the information transmission from / to the mobile station MSI on the existing connection. If, for example, this is applied to every second time frame FR2 ... in the multi-frame, the tt HH

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3 P- rt Pi Φ φ tr LQ 3 P rt p- Φ 3 Φ Ω PJ 3 Φ φ P P- Ω tr P- n P- 3 P.

P ¹ Φ 3 yQ 3 PJ P P- rt 3 P- ω 3 ¹ rt LQ P- Φ rt tr 3 3 rt cn rt LQ P

Φ n 3 Φ 3 P- <φ O H rt 3 Φ P- cn tr rt «cn Φ 3 p. μ- μ- Φ

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3 Φ rt 3 N P- Φ cn 3 P- Φ P 3 3 3 3 n μ- J cn tr 2 3 P- φ

3 3 Φ. P- 3 3 Φ 3 P <Φ Φ 3 LQ p- 3 rr P- φ 3 = o 3 3 3 3

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Φ Öd P- Φ • φ P- 3 _? 3 P. P O p. Φ PJ 0 cn Φ rt <o tr - Φ P- rt to

3 Φ rt 3 O 3 P 3 Φ Φ tr 3 3 P Φ 3 Φ o 3 Φ H LQ S Φ

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Φ ι_ι. ö LQ P- Φ rt H P- P Φ 3 Φ 3 2 3 P. J tr - 3 = 3 P rt Φ 3 μ- rt

3 P- Φ 3 PJ rt 3 P LQ H Φ H tr P o 3 rt rt P- tr 3 PJ PJ 3 3 rt P

Ω £ <τJ 3 iQ P- Φ PJ P PJ n 3 O Φ 3 tr rt ≤ P- rt Φ Φ Φ 3 cn LQ rt rr φ PJ

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• to 3 LQ S Φ LQ P- Φ

3 Φ rt rt P cn 3 3 r P Φ P- P- • cn PJ 3 rt 3 P tQ

K o tr PJ - rt Φ <cn N PJ = Φ Ω - J tr rt Φ • O rt tr P P ö Φ

N o Φ • P- rr O Φ Φ φ 3 p. 3- P iQ P- SS H 3 to P- Φ Φ tr φ μ- Φ S

3 H cn P 3 PJ = p. rt P P Φ PJ Φ 3 3 J Φ Φ 3 P φ 3 Ω φ P O

3 IQ X Φ φ σ Φ 3 g tr PJ Φ tr P- 3 3 P rt 3 / to P- P- Φ P- to

Φ φ K Ω PP Φ P PJ P- rt 3 3 Φ Φ Ω 3 N 3 Φ rt 3 rV P- cn P- μ- rt P n rt N tr Φ p. Φ rt 3 σ 2 tr ≤ 3 φ P- P- O: rt O 3 LQ 3 Φ φ tr 1 3 cn 3 P- P 3 Φ rt Φ o Φ LQ 3 rt P ⁾ 3 P 3 cn P- Φ 3 3

PJ Φ ω φ P- tr M. O 3 3 P- Φ 3 tr $, li Φ O m cn 3 ¹ Φ 3 φ to cn to Φ

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Φ P- Φ P- PJ N n Φ Ω P. P- 3 rt 3 Ω φ P- Φ Ω Ό PJ H tr rt tr 3 rt

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Φ Φ φ d tr H CQ Φ φ Ω tr cn Φ Φ cn

P rt t rr cn • cn

QP 3 M 3 P rt tr 0 φ cn cn 3 = Cd s: $ cn ≥SP ≤ ≤ CQ 3 cn ≥; tr M Ω 0 2 P

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H- ΪV 3 PJ P- Hi P- cn Φ P- Φ cn cn LO Φ P tr "≥! Cn - PJ μ- tr rt H tr

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P P CQ Φ S N 3 P rt 3 rr tr μ- φ φ tr P P- Φ 3 3 Φ O rr r φ rt ω

3 rt PJ μ- Φ P- Φ s: tr cn ^ P- rt q N P PJ μ- 3 M 3 Φ tr μ- μ-

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3 3 P 'tr cn 3 CQ Pl Φ cn <! P P φ μ- Φ P 3 φ tr Hl μ- μ- 3 rt cn rr LQ 2 3

O 3 3 3 Φ rt 3 φ tr t μ- N • 3 μ- ω P CQ φ E uJ 3 φ Φ

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H Mi PJ CQ 3 NPP ¹ 3 φ H r 3 rt 3 rt Φ Φ 3 PJ φ cn tr

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3 J o 5 • LQ P- 5 P φ O Φ

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P- PJ P Φ 3 to P PJ PJ 3 μ- öd Φ rt tr O P μ- 3 Φ> Hi - Φ 3 Φ Φ öd

O rt Φ TJ P 3 rt 3 tr Φ Φ cn φ μ- CQ Φ 3 CQ 0- cn μ- ¹ 3 = 3 P ΓT Φ

3 μ- 3 PJ P φ 3 cn P 3 P P- cn μ- Ω P- Φ P CQ Φ cn P P P Φ <! P

Φ OP Φ μ- LQ H Φ Φ cn N LQ rt cn t tr 3 Φ rt. - _^ 3 P- 3 rt o PJ

3 3 3 μ- Φ cn M P 3 P- 3 3 PJ O Φ P 3 PJ rt tr P φ 3 Φ P P

Φ 3 φ μ- 3 N P Φ CQ LQ PJ rt μ- μ- μ- Φ 3 cn rt μ- Φ PJ LQ s: P tr Hi

3 rt P 3 t φ 3 Φ 3 P μ- φ rt rt P μ- Φ μ- 3 S n Q «Φ P Φ

Φ rr Φ tr P CQ pl • fl J φ Φ O H P N Ω 0 Φ Φ O 0 P P φ P to

3 P P- 3 Φ Jö P 3 PJ φ 3 tr tr 3 3 3 t 3 Φ P 3 P- 3 J cn P σ rt φ Öd to P- H φ LQ φ P 3 rt Φ Φ P 3 PPOP Φ • LQ IQ

Ω Ω μ- μ- p P PJ Φ Φ Φ 3 μ- 3 tr σ 3 3 μ- Φ r P 3 φ P tr 3 ^* φ φ J cn cn μ- 3 3 = P 3 φ φ φ cn <1 PP Φ μ- M • M P-

3; H

P- μ- P- rt Φ σ Φ Ό PJ 2 3 μ- Öd rt t 3 μ- PJ Q 3 3 P cn 3 Hi

3 iQ cn P tr Φ P PI 3 cn ^ i Φ PJ = o cn cn O

S Φ pl Dd 3 3 μ- Hi Φ Mi

3 P Φ J Φ 3 CΩ PJ 3 P PJ LQ H 3 3 = Φ rt 3 Ω P μ- LQ Φ φ P- rt cn rt H μ- CQ 3 PJ rt tr φ 2 3 Φ - 3 tr μ- PP tr o 2 3 = 3 P 3 o = N Holy

N P- H μ- cn H PJ 3 P P o LQ 3 Φ 3 μ- μ- Hl P 3 o 3 3 P 3 CQ 3

P- Ω 3 CQ φ rt Φ cn P- tr Φ 2 3 = P Φ Φ iQ P μ- tr cn <! 3 3 3 Φ 3

3 tr Φ CQ * τ] P- 3 P- φ μ- 3 3 cn tr tr 3 tr φ Φ P P- rt O IQ 3 Φ μ-

Mi Φ 3 ^* rt fö PO cn LQ P PJ to φ PJ cn CQ &

'S 3 P- 3 IQ 3 rt

O 3 3 PJ H Φ 3 3 tr cn Φ Ω P 3 φ J Φ 2 O CQ P μ- b- ^>

P φ rt P> τ] PJ Φ r 3 tr N rt, PP 3 φ o «tr Φ tr J LQ o = g <P μ- 3 Öd WHPJ 3 P rt £ rt P 3 tr Φ o tr Φ P φ H Φ Ω

PJ Φ cn O 3 2 cn to φ Φ rt Öd φ PJ φ Φ N μ- X 3 PJ 3 cn ra rV rt P μ- 3 POH P- μ- PJ P- Φ LQ P P- Φ 3 rV H - 3 rt PJ t rr O to Φ

P- tr iQ tr 3 = P rt 0 3 μ- 3 3 rt P PJ ω 3 Ω Φ Φ 3

O μ- 3 Cd P μ- 3 = tr Φ CQ 3 P- φ 3 3 P Φ CQ 3 rt tr 3 cn 5 p- tr Ω Z P

3 3 PJ cn Φ M tr Φ P cn P φ LQ Ω P rt J J Φ P- P- rt rt cn Φ PJ

Φ P H H cn cn Φ P tr 2 cn P tr rt J rt rr r Ω J cn 2 μ- tr

3 3 Φ rt P 2 φ cn rt S ^! μ- ⁽ Ω Φ P 3 μ- PJ tr P Ω Hl co

3 3 t PJ rt P O CQ PJ φ 3 Φ 3 3 3 cn O μ- rt rr tr 3 = P 3 <

3 LQ μ- Φ Φ rt P μ- tr rt rt φ μ- Hl P Φ 3 Φ μ- P Φ H P PJ 3 o

3 Φ 3 P, μ- P- PJ Φ P- Φ μ- P- P 3 3 = to Ω P 3 Φ tr 0 φ 3 μ- 3 LQ 3

P 3 rt rt O LQ tr 3 O rt N 3 tr Φ tr μ- P 3 Φ 3 P rt P P

P Φ P 3 Φ 3 cn φ 3 P μ- Pi P P- φ Φ 3 cn Öd N μ- O 3 P cn 3 Φ rt J 3 3 rt 3 to J LQ rt rt P 3 PJ cn cn J φ φ 3 3 Φ

P- 3 3 tr 2 • PJ PJ P φ Cd 'Φ Ml P- • tr ^ 3 cn P 3

P P cn tr r φ μ- cn 3 Φ φ Ω μ- N 2 PJ J to M P- rt P> 3 3 ö tr cn 3 o Ω

CQ - cn • LQ PJ P

L> to t H H

Lπ o LΠ o LΠ O LΠ

3 = cn tr PP tr> -_ cn PJ ü φ NP LQ <: P <J rt s = tr 3 03 MPP 3 rt <rt rt μ- Ό α tr td PJ = Φ Φ μ- Φ Φ P μ- 3 3 Φ μ. Φ Φ O cn o φ φ Ω μ- Φ Φ 3 PJ o Φ PJ 3 Ml μ-

Φ 3 cn P 3 P- 3 tr φ P rt Φ P 3 3 φ 03 3 tr 3 P 3 rt 3 3 cn J φ

PP LQ rt PP Φ to 3 = P tr P rt H Φ N Φ 3 g Φ μ- cn 3 3 Φ P- 2 Φ Ω Φ et P- s: P φ rt Φ ** i μ- H L4 μ- P Φ S = ε Cd LQ öd μ- 3 LQ Φ P- 3 Φ ^^ rr O μ-? T μ- 3 3 Φ 3 P tr? rt cn α α 3 μ- Φ PJ PJ 03 J rt φ μ- LQ LQ 3 / td 3 tr rt 3 P- P 3 P rt PJ Φ HN rr 2 Hi cn 3 P 3 cn Φ cn rt O 3 3 3 cn 3 3 3 μ- 03 Φ 3 3 03 tr IQ 3 »Φ Φ p <J o μ- Φ rt P μ- μ- μ-

Φ P Φ JJ Φ TJ LQ Ω μ- 3 Ω 2 PJ 3 P 3 φ LQ P Φ cn 3 03 μ * Φ P 3 P Hl cn cn tr 3 cn O CQ tr o H 3 φ ^ Φ OP g 3 <φ tr P cn rt P Φ <! Pi PJ Φ rt M μ- tr tr rt CQ 3 fö P α Hi PJ J cn O P PJ μ- rt

Φ H s3 Φ tr ts 3 P- PJ μ- P LQ P- Hl P μ- φ 03 to N Φ 2 PJ rt μ- P 3 Ω J

3 P tr Φ P PJ P- CQ 3 rt rt φ 3 IQ 3 = Φ 3 P <. . μ- P tr μ- • d iQ P 5 P tr rr

P- μ- P- PJ 3 3 CQ P μ- N P J Φ P P 03 Φ PJ Φ. Cd 3 P O P 3 J φ rt μ-

3 φ 3 rt P s IQ Φ μ- o φ P rt 3 rt P. P «Φ 3 o J rt P 3 3 O o = P Φ tr 3 PJ μ- Ω 3 P μ- Φ 2 PJ Φ tr - rr P- O 3 Φ NP ¹ P 3 3 3 Q to 3 P φ 3 tr 3 tr P p- CQ S P- o rt H P- cn Ω 3 3 φ PJ 3 Φ cn LQ

Φ 3 Φ P- cn φ P rt Φ Φ Φ μ- Φ 3 tr μ- 3 Hi 3 P H tr O. -, cn 3 3 3 Φ Φ μ- P- LQ 3 rt Ω 3 P- 3 3 P Φ P- Φ P- O Hi 3 = P μ- rr 0 <_ι. 3 03 cn LQ rt cn 3

Ω rt ~ 3 tr Ω 3 rt P P cn μ <3 O P 3 φ 3 3 O 3 o 53 Φ P N t _ rt tr cn μ- 3 <; tr LQ tr 2 3 3 φ PJ 03 H 3 3 Φ μ- PP φ 53 μ- rt ^^ 3 "φ Ω 3 <! LQ 53 0 r PJ = 0 P 3 • 3 rt 2 3 P LQ Hl μ- LQ 3 3 PJ φ Cd PJ =

3 tr μ- 0 cn PJ = P 3 cn tr Ω LQ P J cn PJ P- 3 = 3 rt rt P φ rt 3 3 b P "

H rt 3 Φ tr 3 3 Hd rt μ- tr cn α Φ rt μ> rt Φ LQ P öd Φ Φ P- Φ P _ _ 3 ^ rt

INI P- μ- P- P φ LQ - μ- P- P μ- P- Φ P t_ P P 3 Φ Φ 3 P φ rt μ- P 3 Φ 3; Φ CQ P 3 φ Φ O φ O μ- 3 P Φ 3 = Φ Φ μ- O P N μ- N φ Φ P 3 3 cn φ μ- rt μ- Pi 3 μ- 3 3 3 P- 3 <! tr rr cn 3 3 rt Hl P μ- 3 rr Φ PP P- P φ Cd μ- 3 PJ Φ 0 Ö = 3 Φ rt φ φ φ Φ μ- P - J Φ φ cn rr Ω 3 \ _ 3 rt P CT 3 2 φ 3 PN i PP Ω LQ CH P- 3 3 P

Ω PJ ^• »tr tr P - td φ öd μ-« g φ% cn Φ rt H μ- J rt rt 3 α Ω tr ⁽ QOP μ- tr 3 Φ r Φ td φ OOJP Φ H cn Φ 3 3 φ 3 P μ- J tr Φ cn P μ- φ cn cn CQ 3 P 3. Cn P 3 3 rt rt 3 μ- P Ϊ Hi PHP ⁾ OP ^{1 f} rj r P- cn 3 φ 03 μ- O rt 3. rt μ- • ö μ- PPN CQ tr <! Φ o φ PJ IQ 3 _^ μ- P 3 03 μ- H Φ rt P tr Φ LQ tr PJ Φ φ 2 P 0 PJ 3 3 3 o = Φ P p P ( ⁾ Φ 03 O 3 Ό LQ μ- td 3

N Φ PJ tr Φ • 3 3 3 cn P- 3 'S 3 3 PJ tr P P 3 tr r 3 μ- N LQ P- 3 φ 3

Φ 3 r- ¹ φ cn CQ Φ Hi 3 LQ H rt tr Φ PJ o - Φ Φ φ Φ φ PJ PO to

3 P 3 t. rt φ Cd P Φ 3 μ- J 3 μ- 3 rt r-> 3 3 P cn cn H rt HI 3

<P φ P- Φ Φ H μ- φ 3 IQ CQ 3 03 53 Φ μ- r P rt 3 cn cn Φ • J Φ JOP φ tr 3 P μ- P rt P 03 μ- Hl μ- μ- μ- o PJ a tr 3 O 53 3 Ω

3 3 μ. 3 μ- Φ φ P- 3 LQ 3 P Φ ⁽ Q tr φ P tr rV 3 3 = CΛ 3 PJ: LQ P φ μ- H IQ X

03 Φ p 3 Φ P H Φ 3 μ- P- 3 PJ P P Φ O 03 tr 3 H cn P μ- 3 3 cn Q P <! P P td 3 P- - rr CQ Φ 3 PJ 3 3 3 3 3 = Φ P

Φ Ω Φ P H 3 P TJ tr P P- e rt μ- N μ- cn 03 Φ

Φ cn Φ φ P- Hi »3 3 φ Φ cn Φ μ- μ-

5 P rt P P 3 3 Φ tr Φ μ- Φ 2 μ- μ- Φ LQ to φ P Φ rt φ H Hi 3

Φ tr Φ L rt ^ μ- LQ 3

PJ = Q μ- H 3 0 Ω cn μ- CQ 3 3 P- PP 0 = 53 o NP 3 3 3 φ tr td 3 P- P <PJ P 3 3 rr rt tr tr μ- 3 μ- <! 3 rt J Ω φ α. μ- -> 6 ^* φ J

PJ Φ 3 φ tr 3 φ cn μ- rt φ Φ 3 O o P- P LQ & r P Φ öd LQ 0 3 H cn rt cn P θ * P φ Pl LQ 53 rr 3 PP Hl P Φ φ PJ Φ N φ P ⁾ rt. μ- φ φ

P- Φ 3 3 tr cn Φ Φ 03 3 rt O μ- P 'S 3 PJ Φ rt Φ rt φ t 3 tr cn μ- 3 Mi P- Hl x cn μ- P tr rt LQ - 53 P Φ rt r Φ tr P ⁾ 3 μ- r PJ J <! P

PJ cn 3 LQ tr 3 3 = PJ Pl CQ P Φ PJ Φ 3 CQ 3 3 3 O rt HH 3 PJ Φ Φ rt rt P PJ PP 3 3 Φ 3 rr cn 3 P- p ⁾ O Ω 3 LQ cn P 3 P- 03 μ- μ- HP ^^

• J μ- 3 3 3 3 3 PJ 3 P μ- M 3 rt rt HI tr 3 CS3 P LQ μ- φ Φ 03 rt O ω td rt Ω 3 3 P 3 Φ O \ P Φ μ- PJ = P PJ Φ φ Φ φ 3 PP μ- C rt 3

P- tr PJ N LQ φ PP <! 3 3 m P o 3 μ- 3 μ- PS Φ μ- φ PP ⁾ =

O rt tr 3 • 3 φ Φ a p Φ 3 LQ rt P Ml rt Φ iQ 3 3 LQ P μ- ö P

3 3 3 P Φ P Hl 2 Φ 3 - rt N μ. P to P φ PJ μ- rt 03 μ- X

3 P- H <p- P n CQ PJ Φ Φ P PJ φ r 3 Ω P X iQ rt

LQ 3 3 Φ 3 Φ Φ P 03 3 φ tr μ- Φ PJ = tr Φ P μ- P Φ μ- 3 μ- p- P r rt P φ Φ Φ

Claims

L. L to to H H

LΠ O LΠ o LΠ O LΠ

^ Hl P <P J rt 3 cn <P t J N tsl N P P tr t 53 3 φ N N 03 H)

• P- o PJ Φ μ- • P Φ Ω φ μ- tr 3 Φ Φ μ- Φ Φ Φ μ- 3 μ- Cd 53 Φ Ω • J

• ^• fa - P φ PJ cn tr P φ tr 3 P 3 φ P 03 μ- P Φ P 3 cn μ- μ- tr rt

<P 3 3 tr <'SH tr <PJ = P- _^ - _^ μ- rt rt μ- P Φ H 01 rt 3 <Φ

Φ J Φ μ- Ö: Φ 2 μ- μ-, -.

3 t? P 3 3 rt 3? Φ 3 3 N φ öd Φ P Φ Φ Φ ~ Ω 3 μ- Φ 3

P rt 3 P LQ P. N g ⁼ PJ tr PJ P μ- tr 3 rt P rt

Pi P- 03 P Φ Hi IQ H N P φ Hl P- Φ öd P. Φ 03 Φ tr> X 3 Φ Cd φ rt Pl J

PJ O 3 PJ rt 3 P PJ LQ cn • 3 öd P p- 3 3 3 φ Φ 03 cn 3 rt 03 J 3 tr 3 _^ - 3 rt 3 ^* Hl P- _^^ 3 rt tr φ rt P. rt 03 P φ tsi tr P rr to μ- rt tr cn

P 03 i LQ P P 3 = P rt LQ P P 3 rt Ω P 03 Φ 3 PJ P Φ ~ - '2 Ό Φ P Ό

Φ 3 = td PJ Φ P PJ 03 J Φ Φ 03 tr rr PJ rt 3 tr Φ öd tr o H Φ P

3 tr to μ- IQ 3 tr H μ- 'S 3 <J P- H 03 LQ PJ. -. 3 J φ 3 tr φ 3 3 =

Φ 3 3 P 3 * - 3 Φ 3 \ P H 3 rt <! • fl P 03 3 3 μ- X Φ Ω

3 P 3 3 μ- Φ 3 3 P Φ • xl P- _^^ 3 P- Φ f P Φ P- P rt H <! N tr

PJ rt Φ to CQ PJ φ 3 PJ P LQ PJ tr P fd φ i LQ O P H φ P 03 Φ N 03 Φ Φ 3 φ

Ω P P- Φ Ω 03 3 Φ Ω P- to fd 03 3 tr ^ P 01 rt rt P μ- P tr J 3 μ- P tr 53 Hl LQ P tr 3 53 ~ - ^ «μ» P P- to rt <PJ Ml 3

'S Φ rt Φ Φ PJ Φ Φ Φ P Φ 0 - PJ, - _^ 3 • xl to Φ PJ Φ 3 rt PJ Φ H

S 03 03 P> μ- 3 μ- H P 3 P- N 3 rt Cd P fd φ P- rt P 3 μ- tr 03 3

3 Ω 3 rt CQ 3 3 _ 3 rt 3 Ό φ Φ cn 3 to P- rr μ- tr P O P Hl

03 LQ 2 tr H 03 Φ LQ P ⁾ PJ = H 03 LQ Φ PP 3 H 3 - - rt PO P- 3 Φ 2 O

• d 03 3 3 v P Φ 3 CS ⁾ 3 OP μ- rt Hl - - * LQ - cn PJ 3 3 P φ 3 O p

P H μ- Pl P Φ 03 P μ- Hi P LQ Φ £ 3 tr 3 = Ω - P PJ 3 tr y

3 Hl rr rt O 3 Φ φ LQ O 3 φ 3 μ- PJ P <! NP tr 3. -. 3 tr _^ - _^ μ- J

Ω 3 = μ- N p Ω <rt P φ H Ω 3 Φ φ H ¹ Φ 53 μ- M Φ Cd 3 Φ N rt tr PP 3 tr Φ N Hi 3 3 tr 3 PP rt PP P- φ μ- 3 cn LQ μ- 2 • P-

PJ. -. PJ P rt o PJ rt <! rt 3 Φ μ- 53 03 rt H cn Cd «O

H P tr rt rt H tr B rt μ> N O P 3 3 φ Φ Ω Ml N, - »- - N H • o 3

»P- 3 03 P- P- 3 LQ μ- - rt 3 PJ IQ Φ 3 tr 3 = Φ • rj 53 Φ ~ 3 cn φ φ μ> O o 3 3 φ 01 O 'S 3 μ- P Φ P 5 μ- μ- 53 pl 3 3 =

O ^* 3 - - - 3 PPP 3 rt 3 tr 53 P Φ 3 Φ 3 _^ - ~. H 3 cn φ 2 ü 3 tr

Φ 53 03 Φ Φ 3 P PJ = Φ Φ Φ Φ 3 3 H rt P N - Ω μ- cn 3 φ

P- φ N 3 P 3 P Φ 3 3 P- PP IQ rt 3 PP μ- • t tr H to P μ- PH μ- PJ 3 LQ 3 PPP 03 Hl Φ 53 Φ φ ω ^ φ φ cn - - X rt to

P rt 3 3 _^ ~. to P Φ _^ - _^ P Φ tr <: rt o 3 φ P. ? d μ- 3 JP

Φ Φ 03 μ- 3 - Φ Ω to 3 3 Φ 3 φ o Φ H P H to rt H 2 Mi rt PJ

3 P LQ 3 P- P tr Φ μ- 3 cn 3 tr 3 <JP 2 3 rt ^• - * CQ φ 3 cn 3 = μ- LQ

Φ Φ P - tr 03 P- μ- rr Φ J Φ Φ o Hi 03 Ω μ- Hl

3 rr P 3 tr O H 3 = tr 3 o 5 P O 3

03 φ Φ φ P rr 3 Φ H 3 3

<Φ 03 03 P- rt P- P 03 tr 3 P μ- tr P- P> - 'tr H "φ p 3 03 LQ

Φ rt rt P- N φ PJ μ- Φ Pl Φ OP ¹ H 3 Φ μ- P 3 3 φ cn

P N ~ - P rt tr φ ^ - '3 O 3 3 Φ X 03 PJ μ- P rt PJ 3 tr ^ 3 = tr rt Φ 3 53 P p Φ μ- O rt rt 3 rt N 2 rt P P 01 tr

P- φ P 3 53 3 φ Φ P Φ 3 Hl 3 tr 3 PJ μ- P φ O μ- Φ rt Φ

3 3 P Φ P- Hl 3 μ- φ 3 PJ P Φ> d rt O N PJ = 3 tr o Cd P Φ P

P 3 φ P P O M P rt Φ Φ 3 P μ- 3 3 (Q μ- 3 PJ Φ 3

3 P cn PP _* - _* μ- <P- P- PP P- O Φ 3 rt. -. H φ 01 01 Φ

3 tr • 3 LQ tr Φ O Φ tr φ 3 3 3 μ- - rt cn 3 μ- <- μ-

CQ P N Φ PJ * l Φ Φ P 3 3 o = 3 P- 3 01 rt 01 Φ 3

3 53 03 rt H 3 03 tr Φ tr φ. -. , -. P tr H PJ _^^ 01 PP φ

Φ P φ rt μ. »Rt μ- 3 to rt to P 2 3 φ Φ • rt 3 rt tr PJ

P Ω μ- φ O to Φ 3 φ Φ rt cn μ- 01 μ-. μ- μ- J μ- 01 * f

03 tr rt tr 3 Φ tr P _^ -> P- 53 μ- μ> - rt. Location 3 3

Φ φ φ cn fd μ- φ 3 3 rr P- rt 53 • - 'P rt 3 μ- P Φ 3 rt P 3 3 3 = M rt 3 3 μ- QP cn P- cn N φ 03 01 O 3 μ - X

N P- P tr "- ^ P LQ - Ω P Ω P 3 μ- 53 3« XI, - μ- 3 3 3 rt Φ t φ Φ Φ tr tr P 3 φ 2 Φ IQ φ 3 P φ 3 3 03 HP μ- cn 3 Φ μ- μ- 3 μ- μ- 3 μ- 3 P μ> Hi 3

3 rt rt 3 rt 3 Φ 3 = PPPP

the transmission of the information (ni, si) of the existing connection is interrupted at irregular intervals in the respective time slot (tsl) of successive time frames (FRl, FR2) of a multi-frame and is replaced by the information transmission for the further connection.

5. The method according to any one of the preceding claims, in which a number of codes (eg cl to c2) for connections of the mobile station (MSI) to the base station (BSl) in the time slot (tsl) and in the compression of the time slots (eg tsl) is increased to increase the information transfer rate.

6. The method according to any one of the preceding claims, wherein the mobile communication system is designed as a TDMA / CDMA radio communication system, with frequency channels formed by time slots (tsl ... ts8), in which information (ni, si) of several connections between simultaneously the mobile station (MSI) and the base station (BSl) are transmitted, the information (ni, si) of different connections being distinguishable according to a connection-specific fine structure.

7. The method according to any one of the preceding claims, wherein the compression of the time slots (tsl) by the mobile station (MSI) is used to establish at least one simultaneous connection to the same base station (BSl) or to one or more other base stations (BS2).

8. The method according to claim 7, wherein the parallel connections from the mobile station (MSI) for information transmission for several services or applications are used in parallel.

9. The method according to claim 8, wherein the parallel connections from the mobile station (MSI) are used in parallel for information transmission for a voice service and a data service.

10. The method according to any one of the preceding claims, wherein the compression of the time slots (tsl) by the mobile station (MSI) used to establish a simultaneous connection to a target base station (BS2) to which the existing connection is to be forwarded becomes.

11. The method according to claim 10, wherein the synchronization of the simultaneous connection to the target base station (BS2) is carried out and the quality thereof is checked before switching to the new connection and triggering the previously existing connection.

12. The method as claimed in one of the preceding claims, in which the compression of the time slots (tsl) is used by the mobile station (MSI) to set up a simultaneous connection to the same base station (BSl) or to one or more other base stations (BS2).

13. The method according to any one of the preceding claims, wherein the compression of the time slots (tsl) by the mobile station (MSI) for neighboring cell measurement is used for the detection of neighboring base stations (BS2).

14. The method according to claim 13, wherein the mobile communication system is operated in a TDD mode, in which the base stations (BS1, BS2) and the mobile stations (MSI, MS2, MSK) alternately transmit on one and the same high-frequency channel.

15. Mobile station for carrying out the method according to claim 1, with a signal processing device (SP) for establishing at least one further connection which is independent of the existing connection. dependent connection and with a control device (SE) for selecting the free time slots (tsl) resulting from the compression for the transmission of the information of the independent connection.

16. Base station for performing the method according to claim 1, with control device (BE) for compressing the number of time slots (tsl) in at least two time frames (FRl, FR2) for the information of the existing connection between the mobile station (MSI) and the Base station (BSl) are used, and to increase the transmission rate for the information contained in the remaining time slots (tsl), and with a transmission device (SE / EE) for sending signaling information (si) to the mobile station (MSI), based on which the Mobile station (MSI) recognizes the free time slots (tsl) resulting from the compression.